Cover legend: The background shows the spectrogram of one of the speech segments used in the study “Independent Population Coding of Speech with Sub-Millisecond Precision” by Garcia-Lazaro et al. The superimposed trace shows the response of a neuron recorded intracellularly in gerbil primary auditory cortex (A1) by Jose Garcia-Lazaro and Roberta Donato at the UCL Ear Institute. See Garcia-Lazaro et al. (pages 19362–19372).